.a-el-form-rex {
    display: grid;
    grid-template-rows: auto;
    grid-template-columns: 1fr auto;

    .whole {
        overflow: hidden;
        transition: all 0.3s;
    }

    .btn {

        .iconfont {
            transition: all 0.3s;
        }

        .icon-down {
            transform: rotate(-90deg);
        }

        .icon-left {
            transform: rotate(0);
        }
    }
}